AMERICAN FORK -- Utah transportation officials moved a nearly 4-million pound bridge over the weekend in one of the largest operations of its kind in the world.
The Utah Department of Transportation rerouted traffic on Saturday and Sunday as crews used large machines to move the 354-foot-long bridge that is part of an I-15 freeway project near American Fork.
Crews lifted the bridge 21 feet up and 500 feet over to put it in place by early Sunday morning, a day ahead of schedule.
Construction on the bridge began last July in a field near the freeway.
A viewing area in a nearby parking lot attracted about 1,100 onlookers for what officials said was the longest two-span bridge ever moved in the Western Hemisphere.